It looks like it was this change which was directly after the one I pointed out before.
changeset: 8134:b01a51ff05fa user: Ali Saidi <ali.sa...@arm.com> date: Thu Mar 17 19:20:19 2011 -0500 summary: Mem: Fix issue with dirty block being lost when entire block transferred to non-cache. Could you take a look, Ali? The description doesn't necessarily sound like something you'd expect to change the stats (it sounds like a corner case), but I'm assuming you'll know. Gabe On 04/03/11 19:51, Gabe Black wrote: > Does anyone have any ideas about when X86_SE parser stopped working? The > last time it passed for sure was the end of February, but on March 16th > Ali updated the stats and so it was presumably working then too. I'm > running at that changeset right now to confirm that. There weren't any > X86 specific changes recently, but there were a few O3 ones which might > have changed the stats. The output is below, and you can see the biggest > change percentage wise was icache writebacks. Most of the changes are > related to memory somehow. After the stats is info about a change that > may have caused the problem. > > ===== Statistics differences ===== > Maximum error magnitude: +133.333333% > > Reference New Value Abs Diff Pct Chg > Key statistics: > > host_inst_rate 189714 148502 -41212 -21.72% > host_mem_usage 264736 268256 3520 +1.33% > sim_insts 1527476062 1528988756 1512694 +0.10% > sim_ticks 610952992000 612245337000 1292345000 > +0.21% > system.cpu.commit.COM:count 1527476062 1528988756 1512694 +0.10% > > Differences > 0%: > > system.cpu.icache.writebacks 3 7 4 +133.33% > system.cpu.rename.RENAME:serializeStallCycles 19936 > 16025 -3911 -19.62% > system.cpu.l2cache.occ_%::0 0.213694 0.236362 0.022668 +10.61% > system.cpu.l2cache.occ_blocks::0 7002.339473 7745.103692 742.764219 > +10.61% > system.cpu.rename.RENAME:tempSerializingInsts 2561 > 2314 -247 -9.64% > system.cpu.icache.ReadReq_mshr_hits 1570 1427 > -143 -9.11% > system.cpu.icache.demand_mshr_hits 1570 1427 -143 > -9.11% > system.cpu.icache.overall_mshr_hits 1570 1427 > -143 -9.11% > system.cpu.rename.RENAME:serializingInsts 2550 2345 > -205 -8.04% > system.cpu.l2cache.ReadReq_misses 316709 339091 22382 > +7.07% > system.cpu.l2cache.ReadReq_mshr_misses 316709 339091 > 22382 +7.07% > system.cpu.l2cache.ReadReq_mshr_miss_latency 9818903000 10512799000 > 693896000 +7.07% > system.cpu.l2cache.ReadReq_miss_latency 10822415500 11584355000 > 761939500 +7.04% > system.cpu.dcache.ReadReq_mshr_miss_latency 14062264500 14863694500 > 801430000 +5.70% > system.cpu.l2cache.ReadReq_miss_rate 0.182786 0.192941 > 0.010155 +5.56% > system.cpu.l2cache.ReadReq_mshr_miss_rate 0.182786 0.192941 > 0.010155 +5.56% > system.cpu.idleCycles 24586339 25677793 1091454 +4.44% > system.cpu.dcache.ReadReq_avg_mshr_miss_latency 8150.695480 > 8493.787248 343.091768 +4.21% > system.cpu.l2cache.replacements 553099 575827 22728 +4.11% > system.cpu.l2cache.demand_mshr_miss_latency 17475146000 18186565000 > 711419000 +4.07% > [... showing top 20 errors only, additional errors omitted ...] > > ***** build/X86_SE/tests/fast/long/20.parser/x86/linux/o3-timing FAILED! > > changeset 9f704aa10eb4 in /z/repo/m5 > details: http://repo.m5sim.org/m5?cmd=changeset;node=9f704aa10eb4 > description: > O3: Fix unaligned stores when cache blocked > > Without this change the a store can be issued to the cache multiple > times. > If this case occurs when the l1 cache is out of mshrs (and thus blocked) > the processor will never make forward progress because each cycle it > will > send a single request using the recently freed mshr and not completing > the > multipart store. This will continue forever. > > diffstat: > > src/cpu/o3/lsq_unit_impl.hh | 4 +++- > 1 files changed, 3 insertions(+), 1 deletions(-) > > diffs (14 lines): > > diff -r 2af262e73961 -r 9f704aa10eb4 src/cpu/o3/lsq_unit_impl.hh > --- a/src/cpu/o3/lsq_unit_impl.hh Thu Mar 17 00:43:54 2011 -0400 > +++ b/src/cpu/o3/lsq_unit_impl.hh Thu Mar 17 19:20:19 2011 -0500 > @@ -1103,7 +1103,9 @@ > dynamic_cast<LSQSenderState *>(retryPkt->senderState); > > // Don't finish the store unless this is the last packet. > - if (!TheISA::HasUnalignedMemAcc || !state->pktToSend) { > + if (!TheISA::HasUnalignedMemAcc || !state->pktToSend || > + state->pendingPacket == retryPkt) { > + state->pktToSend = false; > storePostSend(retryPkt); > } > retryPkt = NULL; > _______________________________________________ > m5-dev mailing list > m5-dev@m5sim.org > http://m5sim.org/mailman/listinfo/m5-dev > > > > On 04/03/11 09:44, Cron Daemon wrote: >> ***** build/X86_SE/tests/fast/long/20.parser/x86/linux/o3-timing FAILED! >> ***** build/ALPHA_SE/tests/fast/quick/00.hello/alpha/linux/simple-atomic >> passed. >> ***** build/ALPHA_SE/tests/fast/quick/60.rubytest/alpha/linux/rubytest-ruby >> passed. >> ***** build/ALPHA_SE/tests/fast/long/50.vortex/alpha/tru64/simple-timing >> passed. >> ***** build/ALPHA_SE/tests/fast/quick/50.memtest/alpha/linux/memtest-ruby >> passed. >> ***** build/ALPHA_SE/tests/fast/quick/30.eio-mp/alpha/eio/simple-timing-mp >> passed. >> ***** >> build/ALPHA_SE/tests/fast/quick/00.hello/alpha/tru64/simple-timing-ruby >> passed. >> ***** build/ALPHA_SE/tests/fast/long/00.gzip/alpha/tru64/simple-atomic >> passed. >> ***** build/ALPHA_SE/tests/fast/long/30.eon/alpha/tru64/simple-timing passed. >> ***** build/ALPHA_SE/tests/fast/quick/00.hello/alpha/linux/inorder-timing >> passed. >> ***** build/ALPHA_SE/tests/fast/long/30.eon/alpha/tru64/simple-atomic passed. >> ***** build/ALPHA_SE/tests/fast/quick/30.eio-mp/alpha/eio/simple-atomic-mp >> passed. >> ***** build/ALPHA_SE/tests/fast/long/50.vortex/alpha/tru64/o3-timing passed. >> ***** build/ALPHA_SE/tests/fast/long/70.twolf/alpha/tru64/inorder-timing >> passed. >> ***** build/ALPHA_SE/tests/fast/long/50.vortex/alpha/tru64/simple-atomic >> passed. >> ***** build/ALPHA_SE/tests/fast/long/70.twolf/alpha/tru64/simple-atomic >> passed. >> ***** build/ALPHA_SE/tests/fast/long/70.twolf/alpha/tru64/simple-timing >> passed. >> ***** build/ALPHA_SE/tests/fast/long/00.gzip/alpha/tru64/simple-timing >> passed. >> ***** build/ALPHA_SE/tests/fast/quick/01.hello-2T-smt/alpha/linux/o3-timing >> passed. >> ***** build/ALPHA_SE/tests/fast/quick/20.eio-short/alpha/eio/simple-atomic >> passed. >> ***** build/ALPHA_SE/tests/fast/long/60.bzip2/alpha/tru64/simple-atomic >> passed. >> ***** build/ALPHA_SE/tests/fast/quick/00.hello/alpha/linux/o3-timing passed. >> ***** build/ALPHA_SE/tests/fast/long/40.perlbmk/alpha/tru64/simple-atomic >> passed. >> ***** build/ALPHA_SE/tests/fast/quick/00.hello/alpha/tru64/simple-timing >> passed. >> ***** build/ALPHA_SE/tests/fast/quick/00.hello/alpha/tru64/o3-timing passed. >> ***** build/ALPHA_SE/tests/fast/long/00.gzip/alpha/tru64/o3-timing passed. >> ***** build/ALPHA_SE/tests/fast/long/60.bzip2/alpha/tru64/simple-timing >> passed. >> ***** build/ALPHA_SE/tests/fast/long/30.eon/alpha/tru64/o3-timing passed. >> ***** build/ALPHA_SE/tests/fast/quick/20.eio-short/alpha/eio/simple-timing >> passed. >> ***** build/ALPHA_SE/tests/fast/quick/00.hello/alpha/linux/simple-timing >> passed. >> ***** build/ALPHA_SE/tests/fast/long/50.vortex/alpha/tru64/inorder-timing >> passed. >> ***** build/ALPHA_SE/tests/fast/quick/00.hello/alpha/tru64/simple-atomic >> passed. >> ***** build/ALPHA_SE/tests/fast/long/40.perlbmk/alpha/tru64/simple-timing >> passed. >> ***** >> build/ALPHA_SE/tests/fast/quick/00.hello/alpha/linux/simple-timing-ruby >> passed. >> ***** build/ALPHA_SE/tests/fast/quick/50.memtest/alpha/linux/memtest passed. >> ***** build/ALPHA_SE/tests/fast/long/70.twolf/alpha/tru64/o3-timing passed. >> ***** >> build/ALPHA_SE_MOESI_hammer/tests/fast/quick/60.rubytest/alpha/linux/rubytest-ruby-MOESI_hammer >> passed. >> ***** >> build/ALPHA_SE_MOESI_hammer/tests/fast/quick/00.hello/alpha/tru64/simple-timing-ruby-MOESI_hammer >> passed. >> ***** >> build/ALPHA_SE_MOESI_hammer/tests/fast/quick/00.hello/alpha/linux/simple-timing-ruby-MOESI_hammer >> passed. >> ***** >> build/ALPHA_SE_MOESI_hammer/tests/fast/quick/50.memtest/alpha/linux/memtest-ruby-MOESI_hammer >> passed. >> ***** >> build/ALPHA_SE_MESI_CMP_directory/tests/fast/quick/60.rubytest/alpha/linux/rubytest-ruby-MESI_CMP_directory >> passed. >> ***** >> build/ALPHA_SE_MESI_CMP_directory/tests/fast/quick/00.hello/alpha/tru64/simple-timing-ruby-MESI_CMP_directory >> passed. >> ***** >> build/ALPHA_SE_MESI_CMP_directory/tests/fast/quick/00.hello/alpha/linux/simple-timing-ruby-MESI_CMP_directory >> passed. >> ***** >> build/ALPHA_SE_MESI_CMP_directory/tests/fast/quick/50.memtest/alpha/linux/memtest-ruby-MESI_CMP_directory >> passed. >> ***** >> build/ALPHA_SE_MOESI_CMP_directory/tests/fast/quick/60.rubytest/alpha/linux/rubytest-ruby-MOESI_CMP_directory >> passed. >> ***** >> build/ALPHA_SE_MOESI_CMP_directory/tests/fast/quick/00.hello/alpha/tru64/simple-timing-ruby-MOESI_CMP_directory >> passed. >> ***** >> build/ALPHA_SE_MOESI_CMP_directory/tests/fast/quick/00.hello/alpha/linux/simple-timing-ruby-MOESI_CMP_directory >> passed. >> ***** >> build/ALPHA_SE_MOESI_CMP_directory/tests/fast/quick/50.memtest/alpha/linux/memtest-ruby-MOESI_CMP_directory >> passed. >> ***** >> build/ALPHA_SE_MOESI_CMP_token/tests/fast/quick/60.rubytest/alpha/linux/rubytest-ruby-MOESI_CMP_token >> passed. >> ***** >> build/ALPHA_SE_MOESI_CMP_token/tests/fast/quick/00.hello/alpha/tru64/simple-timing-ruby-MOESI_CMP_token >> passed. >> ***** >> build/ALPHA_SE_MOESI_CMP_token/tests/fast/quick/00.hello/alpha/linux/simple-timing-ruby-MOESI_CMP_token >> passed. >> ***** >> build/ALPHA_SE_MOESI_CMP_token/tests/fast/quick/50.memtest/alpha/linux/memtest-ruby-MOESI_CMP_token >> passed. >> ***** >> build/ALPHA_FS/tests/fast/quick/10.linux-boot/alpha/linux/tsunami-simple-atomic-dual >> passed. >> ***** >> build/ALPHA_FS/tests/fast/quick/10.linux-boot/alpha/linux/tsunami-simple-timing >> passed. >> ***** >> build/ALPHA_FS/tests/fast/quick/80.netperf-stream/alpha/linux/twosys-tsunami-simple-atomic >> passed. >> ***** >> build/ALPHA_FS/tests/fast/quick/10.linux-boot/alpha/linux/tsunami-simple-atomic >> passed. >> ***** >> build/ALPHA_FS/tests/fast/quick/10.linux-boot/alpha/linux/tsunami-simple-timing-dual >> passed. >> ***** >> build/ALPHA_FS/tests/fast/long/10.linux-boot/alpha/linux/tsunami-o3-dual >> passed. >> ***** build/ALPHA_FS/tests/fast/long/10.linux-boot/alpha/linux/tsunami-o3 >> passed. >> ***** build/ALPHA_SE/tests/fast/long/00.gzip/alpha/tru64/inorder-timing >> passed. >> ***** build/MIPS_SE/tests/fast/quick/00.hello/mips/linux/simple-atomic >> passed. >> ***** build/MIPS_SE/tests/fast/quick/00.hello/mips/linux/simple-timing >> passed. >> ***** build/MIPS_SE/tests/fast/quick/00.hello/mips/linux/simple-timing-ruby >> passed. >> ***** build/MIPS_SE/tests/fast/quick/00.hello/mips/linux/o3-timing passed. >> ***** build/MIPS_SE/tests/fast/quick/00.hello/mips/linux/inorder-timing >> passed. >> ***** build/POWER_SE/tests/fast/quick/00.hello/power/linux/simple-atomic >> passed. >> ***** build/POWER_SE/tests/fast/quick/00.hello/power/linux/o3-timing passed. >> ***** >> build/SPARC_SE/tests/fast/quick/00.hello/sparc/linux/simple-timing-ruby >> passed. >> ***** build/SPARC_SE/tests/fast/quick/02.insttest/sparc/linux/simple-atomic >> passed. >> ***** >> build/SPARC_SE/tests/fast/quick/40.m5threads-test-atomic/sparc/linux/simple-atomic-mp >> passed. >> ***** build/SPARC_SE/tests/fast/quick/00.hello/sparc/linux/simple-timing >> passed. >> ***** build/SPARC_SE/tests/fast/long/70.twolf/sparc/linux/simple-timing >> passed. >> ***** build/SPARC_SE/tests/fast/quick/00.hello/sparc/linux/simple-atomic >> passed. >> ***** build/SPARC_SE/tests/fast/long/10.mcf/sparc/linux/simple-timing passed. >> ***** >> build/SPARC_SE/tests/fast/quick/40.m5threads-test-atomic/sparc/linux/o3-timing-mp >> passed. >> ***** build/SPARC_SE/tests/fast/long/50.vortex/sparc/linux/simple-timing >> passed. >> ***** build/SPARC_SE/tests/fast/quick/02.insttest/sparc/linux/simple-timing >> passed. >> ***** >> build/SPARC_SE/tests/fast/quick/40.m5threads-test-atomic/sparc/linux/simple-timing-mp >> passed. >> ***** build/SPARC_SE/tests/fast/long/00.gzip/sparc/linux/simple-atomic >> passed. >> ***** build/SPARC_SE/tests/fast/quick/02.insttest/sparc/linux/o3-timing >> passed. >> ***** build/SPARC_SE/tests/fast/long/70.twolf/sparc/linux/simple-atomic >> passed. >> ***** build/SPARC_SE/tests/fast/long/10.mcf/sparc/linux/simple-atomic passed. >> ***** build/SPARC_SE/tests/fast/long/50.vortex/sparc/linux/simple-atomic >> passed. >> ***** build/SPARC_SE/tests/fast/long/00.gzip/sparc/linux/simple-timing >> passed. >> ***** >> build/SPARC_FS/tests/fast/long/80.solaris-boot/sparc/solaris/t1000-simple-atomic >> passed. >> ***** build/X86_SE/tests/fast/quick/00.hello/x86/linux/o3-timing passed. >> ***** build/X86_SE/tests/fast/long/70.twolf/x86/linux/simple-atomic passed. >> ***** build/X86_SE/tests/fast/quick/00.hello/x86/linux/simple-timing passed. >> ***** build/X86_SE/tests/fast/long/70.twolf/x86/linux/simple-timing passed. >> ***** build/X86_SE/tests/fast/quick/00.hello/x86/linux/simple-timing-ruby >> passed. >> ***** build/X86_SE/tests/fast/long/10.mcf/x86/linux/simple-timing passed. >> ***** build/X86_SE/tests/fast/long/20.parser/x86/linux/simple-timing passed. >> ***** build/X86_SE/tests/fast/long/20.parser/x86/linux/simple-atomic passed. >> ***** build/X86_SE/tests/fast/quick/00.hello/x86/linux/simple-atomic passed. >> ***** build/X86_SE/tests/fast/long/10.mcf/x86/linux/simple-atomic passed. >> ***** build/X86_SE/tests/fast/long/70.twolf/x86/linux/o3-timing passed. >> ***** build/X86_SE/tests/fast/long/60.bzip2/x86/linux/simple-atomic passed. >> ***** build/ALPHA_SE/tests/fast/long/40.perlbmk/alpha/tru64/o3-timing passed. >> ***** build/ALPHA_SE/tests/fast/long/60.bzip2/alpha/tru64/o3-timing passed. >> ***** build/X86_SE/tests/fast/long/00.gzip/x86/linux/simple-timing passed. >> ***** build/X86_SE/tests/fast/long/00.gzip/x86/linux/simple-atomic passed. >> ***** build/X86_SE/tests/fast/long/10.mcf/x86/linux/o3-timing passed. >> ***** build/X86_SE/tests/fast/long/60.bzip2/x86/linux/simple-timing passed. >> ***** build/X86_FS/tests/fast/quick/10.linux-boot/x86/linux/pc-simple-atomic >> passed. >> ***** build/X86_FS/tests/fast/quick/10.linux-boot/x86/linux/pc-simple-timing >> passed. >> ***** build/ARM_SE/tests/fast/quick/00.hello/arm/linux/o3-timing passed. >> ***** build/ARM_SE/tests/fast/long/10.mcf/arm/linux/simple-timing passed. >> ***** build/ARM_SE/tests/fast/long/10.mcf/arm/linux/o3-timing passed. >> ***** build/ARM_SE/tests/fast/quick/00.hello/arm/linux/simple-atomic passed. >> ***** build/SPARC_SE/tests/fast/long/00.gzip/sparc/linux/o3-timing passed. >> ***** build/ARM_SE/tests/fast/long/50.vortex/arm/linux/o3-timing passed. >> ***** build/ARM_SE/tests/fast/long/30.eon/arm/linux/simple-timing passed. >> ***** build/ARM_SE/tests/fast/long/50.vortex/arm/linux/simple-timing passed. >> ***** build/ALPHA_SE/tests/fast/long/60.bzip2/alpha/tru64/inorder-timing >> passed. >> ***** build/ARM_SE/tests/fast/long/40.perlbmk/arm/linux/simple-atomic passed. >> ***** build/ARM_SE/tests/fast/long/30.eon/arm/linux/o3-timing passed. >> ***** build/ARM_SE/tests/fast/long/00.gzip/arm/linux/o3-timing passed. >> ***** build/ARM_SE/tests/fast/long/60.bzip2/arm/linux/simple-timing passed. >> ***** build/ARM_SE/tests/fast/long/60.bzip2/arm/linux/simple-atomic passed. >> ***** build/ARM_SE/tests/fast/long/20.parser/arm/linux/o3-timing passed. >> ***** build/ARM_SE/tests/fast/long/70.twolf/arm/linux/simple-atomic passed. >> ***** build/ARM_SE/tests/fast/long/70.twolf/arm/linux/simple-timing passed. >> ***** build/ARM_SE/tests/fast/long/30.eon/arm/linux/simple-atomic passed. >> ***** build/ARM_SE/tests/fast/long/00.gzip/arm/linux/simple-atomic passed. >> ***** build/ARM_SE/tests/fast/long/50.vortex/arm/linux/simple-atomic passed. >> ***** build/X86_SE/tests/fast/long/00.gzip/x86/linux/o3-timing passed. >> ***** build/ARM_SE/tests/fast/long/10.mcf/arm/linux/simple-atomic passed. >> ***** build/ARM_SE/tests/fast/long/00.gzip/arm/linux/simple-timing passed. >> ***** build/ARM_SE/tests/fast/quick/00.hello/arm/linux/simple-timing passed. >> ***** build/ARM_SE/tests/fast/long/20.parser/arm/linux/simple-atomic passed. >> ***** build/ARM_SE/tests/fast/long/20.parser/arm/linux/simple-timing passed. >> ***** build/ARM_SE/tests/fast/long/40.perlbmk/arm/linux/simple-timing passed. >> ***** >> build/ARM_FS/tests/fast/quick/10.linux-boot/arm/linux/realview-simple-atomic >> passed. >> ***** >> build/ARM_FS/tests/fast/quick/10.linux-boot/arm/linux/realview-simple-timing >> passed. >> ***** build/ARM_FS/tests/fast/long/10.linux-boot/arm/linux/realview-o3 >> passed. >> ***** build/ARM_SE/tests/fast/long/70.twolf/arm/linux/o3-timing passed. >> ***** build/ARM_SE/tests/fast/long/60.bzip2/arm/linux/o3-timing passed. >> ***** build/ARM_SE/tests/fast/long/40.perlbmk/arm/linux/o3-timing passed. >> >> See /z/m5/regression/regress-2011-04-03-03:00:02 for details. >> >> _______________________________________________ >> m5-dev mailing list >> m5-dev@m5sim.org >> http://m5sim.org/mailman/listinfo/m5-dev > 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